Automatic switching equipment , automatic control equipment 自动开闭?电装置
Automatic switching equipment 自动交换设备
Logic of double power automatic switch equipment of bridge - breaker in 220 kv shaogang substation 韶钢变电站桥连断路器的备用电源自动投入逻辑介绍
A room or building equipped so that telecommunication lines terminated there may be interconnected as required . the equipment may include manual or automatic switching equipment 一种安装有手动或自动交换设备的房间或建筑物,在此终接的通信线路能按需求进行互连。